<!DOCTYPE html>
<html lang="en">

<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Document</title>
</head>

<body>
  <script>

    let obj = {
      name: '张三',
      age: 18,
      gender: '男',
      'user-name': '李四',
      sayHI: function (x, y) {
        // document.write('Hi')
        document.write(x + y)
      }
    }
    // obj.sayHI()
    //传参
    obj.sayHI(1, 2)



  </script>
</body>

</html>